How do i copy material from one .blend file to another?
You append Materials like everything else in Blender:

In your new blend file, go to append:
Select the blend file with the original material, and click &quot;Append&quot; to browse its contents.
In it, go to the folder called &quot;Material&quot; (or &quot;Mesh&quot; or &quot;Object&quot; or &quot;Texture&quot; or something else depending on what you want to append) 
Select the materials (meshes, objects, textures, ...) you want to import and hit &quot;append from library&quot;.